CIO update: Post-mortem on the Skype outage — As a follow-up to last week's outage, here is a detailed explanation of what transpired, the root cause, and plans to mitigate this from happening again in the future. For starters, it helps to understand that Skype is based on a peer-to-peer (P2P) network, which is explained here.

Memo Pad: iPad Magazine Sales Drop — Remember when Wired's debut issue for the iPad sold more than 100,000 times in June? It looks like it will be a while before that type of performance is seen again. Digital sales dropped toward the end of 2010 for all the magazines that make those figures available …

Delicious In Purgatory — On December 16 Yahoo accidentally told the world they were shutting down popular bookmarking site Delicious. They fired most or all of the Delicious staff. Then they untold that story, saying they intended to sell it off and that the press got it all wrong. — Ok great.

Evan Williams: The Challenges of a Web of Infinite Info — Evan Williams and I have known each other for a long time. From a struggling entrepreneur who started Blogger, to a successful founder who got liberal funding for his podcasting start-up Odeo, to the accidental launch of Twitter …

NY Times Biffs It on Wi-Fi Conference Overload — The New York Times doesn't get to the heart of conference Wi-Fi problems: I can't tell you how frustrated I am about this rather facile article on problems with thousands of people all trying to connect at once to a Wi-Fi network (or networks) …

Irony: Read Kindle Books On Your Rooted NookColor — Just when we thought the NookColor was just a B&N reading device, hackers have rooted the devices and ported the Kindle reading app to the platform, ensuring plenty of migraines around Barnes & Noble HQ this week.

Wired's refusal to release or comment on the Manning chat logs — Kevin Poulsen (left), Evan Hansen (right) and Bradley Manning — Last night, Wired posted a two-part response to my criticisms of its conduct in reporting on the arrest of PFC Bradley Manning and the key role played in that arrest by Adrian Lamo.

Breaking GSM With a $15 Phone ... Plus Smarts — BERLIN — Whatever assurances have been given about the security of GSM cellphone calls, forget about them now. — Use at your own risk. — Speaking at the Chaos Computer Club (CCC) Congress here Tuesday, a pair of researchers demonstrated …